I have the exact same problem with my 95 rs. I got bosch wires, and my dad just put new plugs in *don't know the brand*, yet it keeps sputtering in the lower rpms. There is no oil leaks or nething, i have no idea wut else to do.

 

NGK's are the way to go, with nology wires. the wires will take some cash though

 

I have always ran NGK's in my Eclipses..still do.